{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["exact location", "area", "road", "river"], "input": "-DOCSTART- RT @united : .@IAH is now closed until noon on Thursday . Visit https://t.co/MKesTltbqy for status and rebooking . Travel Waiver : https://t.co/gAjiWabCD6 https://t.co/WrbC6mPOgQ"}
{"exact location": [".@IAH"], "area": [], "road": [], "river": []}